As with all exercise, we recommend you consult your physician before beginning. Speed Core seems to actually help many golfers and their core, hips, and back, not only with added range of motion and speed but also strength. Professional Golfer Gary McCord has found he's able to play MORE golf with less pain. His endurance has improved so much in just a few months that he can now play as many holes as he likes and can hit balls now for hours at 77 years old.